CN107884904B - Six chip imaging lens groups - Google Patents
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- CN107884904B CN107884904B CN201610867196.3A CN201610867196A CN107884904B CN 107884904 B CN107884904 B CN 107884904B CN 201610867196 A CN201610867196 A CN 201610867196A CN 107884904 B CN107884904 B CN 107884904B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 118
- 230000015572 biosynthetic process Effects 0.000 claims description 58
- 238000003786 synthesis reaction Methods 0.000 claims description 58
- 230000003287 optical effect Effects 0.000 claims description 26
- 238000004939 coking Methods 0.000 claims 4
- 239000000463 material Substances 0.000 description 18
- 229920003023 plastic Polymers 0.000 description 13
- 239000004033 plastic Substances 0.000 description 13
- 230000004304 visual acuity Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000004075 alteration Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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Abstract
The present invention discloses a kind of six chip imaging lens groups, sequentially includes by object side to image side: an aperture；One first lens have positive refracting power；One second lens have negative refracting power；One the third lens have positive refracting power；One the 4th lens have negative refracting power；One the 5th lens have positive refracting power；One the 6th lens have negative refracting power.It uses and reaches a kind of six chip imaging lens groups for having both large aperture, high image quality and small size performance.
Description
Technical field
The present invention relates to six chip imaging lens groups, more particularly to a kind of miniaturization six applied on electronic product
Formula imaging lens group.
Background technique
The portable electronic devices such as smartphone and tablet computer are fast-developing in recent years, are applied to portable electronic
Miniaturized optical camera lens in equipment is indispensable, and with the progress of manufacture of semiconductor technology, developed area it is smaller,
The higher image sensor of pixel more leads miniaturized optical camera lens to enter high picture element field, therefore image quality becomes each industry
The direction of person's research.
Tradition is equipped on the high picture element miniaturized optical camera lens on electronic device, mostly uses based on five chip lens arrangements,
But due to high-order smartphone (Smart Phone), wearable device (Wearable Device) and tablet computer
High standards portable electronic devices such as (Tablet PersonalComputer) it is prevailing, drive miniaturized optical camera lens drawing
Element is promoted with the requirement in image quality, and five known chip optical lens will be unable to meet the needs of higher order.
Although having the general traditional six chip optical lens of development, at present to provide the photographic mirror with large aperture and high image quality
Head.However, it is too long that there is the optics total length of the optical lens of large aperture and high image quality to be easy, and it is difficult to optical lens simultaneously
Large aperture, high image quality and the characteristic of miniaturization are had both, and is unfavorable for using on portable electronic device.
Therefore Persisting exploitation goes out a kind of optical lens for having both large aperture, high image quality and small size performance simultaneously, it is
The motivation that the present invention researches and develops.
Summary of the invention
The purpose of the present invention is to provide a kind of six chip imaging lens groups, espespecially one kind have both large aperture, high image quality with
And six chip imaging lens groups of small size performance.
In order to reach foregoing purpose, according to the present invention provided by a kind of six chip imaging lens groups, by object side to image side
Sequentially include: an aperture；One first lens have positive refracting power, are convex surface at the dipped beam axis of object side surface, image side surface is close
It is concave surface at optical axis, object side surface is aspherical with an image side surface at least surface；One second lens have negative refracting power,
It is convex surface at its object side surface dipped beam axis, is concave surface, object side surface and image side surface at least one at the dipped beam axis of image side surface
Surface is aspherical；One the third lens have positive refracting power, are convex surface, image side surface dipped beam at the dipped beam axis of object side surface
It is convex surface at axis, object side surface is aspherical with an image side surface at least surface；One the 4th lens have negative refracting power,
It is concave surface at the dipped beam axis of object side surface, is convex surface, object side surface and an image side surface at least table at the dipped beam axis of image side surface
Face is aspherical；One the 5th lens have positive refracting power, are convex surface, image side surface dipped beam axis at the dipped beam axis of object side surface
Place is concave surface, and object side surface is aspherical with an image side surface at least surface；One the 6th lens have negative refracting power, object
It is concave surface at the dipped beam axis of side surface, is convex surface, object side surface and an image side surface at least surface at the dipped beam axis of image side surface
To be aspherical, object side surface and an image side surface at least surface have an at least point of inflexion.
Preferably, wherein the focal length of first lens is f1, the focal length of second lens is f2, and meets following condition :-
0.7<f1/f2<-0.3.Whereby, make the refracting power configuration of first lens and second lens more appropriate, can help to obtain
The extensive excessive increase drawn angle (field angle) and reduce system aberration.
Preferably, wherein the focal length of second lens is f2, the focal length of the third lens is f3, and meets following condition :-
1.0<f2/f3<-0.6.Whereby, it can effectively distribute the refracting power of the third lens and ensure the refracting power of the third lens simultaneously
It is not too big, it advantageously reduces system sensitivity and reduces the generation of aberration.
Preferably, wherein the focal length of the third lens is f3, the focal length of the 4th lens is f4, and meets following condition :-
1.3<f3/f4<-0.7.Whereby, it can effectively distribute the refracting power of the 4th lens and ensure the refracting power of the 4th lens simultaneously
It is not too big, it advantageously reduces system sensitivity and reduces the generation of aberration.
Preferably, wherein the focal length of the 4th lens is f4, the focal length of the 5th lens is f5, and meets following condition :-
1.9<f4/f5<-1.3.Whereby, it can effectively distribute the refracting power of the 5th lens and ensure the refracting power of the 5th lens simultaneously
It is not too big, it advantageously reduces system sensitivity and reduces the generation of aberration.
Preferably, wherein the focal length of the 5th lens is f5, the focal length of the 6th lens is f6, and meets following condition :-
1.4<f5/f6<-0.7.Whereby, it can effectively distribute the refracting power of the 6th lens and ensure the refracting power of the 6th lens simultaneously
It is not too big, it advantageously reduces system sensitivity and reduces the generation of aberration.
Preferably, wherein the focal length of first lens is f1, the focal length of the third lens is f3, and meets following condition:
0.2<f1/f3<0.6.Whereby, the flexion dynamic balance of six chip imaging lens groups can be maintained, and then reaches optimal imaging effect.
Preferably, wherein the focal length of second lens is f2, the focal length of the 4th lens is f4, and meets following condition:
0.6<f2/f4<1.0.Whereby, be conducive to be promoted big visual angle, the large aperture characteristic of six chip imaging lens groups, and it is quick to reduce its
Sensitivity, is conducive to the production of each lens, and improves production yield.
Preferably, wherein the focal length of the third lens is f3, the focal length of the 5th lens is f5, and meets following condition:
1.3<f3/f5<2.0.Whereby, be conducive to be promoted big visual angle, the large aperture characteristic of six chip imaging lens groups, and it is quick to reduce its
Sensitivity, is conducive to the production of each lens, and improves production yield.
Preferably, wherein the focal length of the 4th lens is f4, the focal length of the 6th lens is f6, and meets following condition:
1.3<f4/f6<2.0.Whereby, be conducive to be promoted big visual angle, the large aperture characteristic of six chip imaging lens groups, and it is quick to reduce its
Sensitivity, is conducive to the production of each lens, and improves production yield.
Preferably, wherein the focal length of first lens is f1, the synthesis focal length of second lens and the third lens is f23,
And meet following condition: -0.1 < f1/f23 < -0.03.Whereby, the flexion dynamic balance of six chip imaging lens groups can be maintained, in turn
Reach optimal imaging effect.
Preferably, wherein second lens and the synthesis focal length of the third lens are f23, the focal length of the 4th lens is f4,
And meet following condition: 3.0 < f23/f4 < 7.0.Whereby, be conducive to be promoted big visual angle, the large aperture of six chip imaging lens groups
Characteristic, and its susceptibility can be reduced, be conducive to the production of each lens, and improve production yield.
Preferably, wherein second lens and the synthesis focal length of the third lens are f23, the 4th lens and the 5th lens
Synthesis focal length is f45, and meets following condition: -5.0 < f23/f45 < -3.8.When f23/f45 meets foregoing relationships, then can enable
The six chips imaging lens group is having big picture angle, high picture number and low camera lens height, while resolving power is obviously improved, conversely,
If exceeding the data value range of above-mentioned optical profile type, it will lead to that the performances of six chip imaging lens groups, resolving power be low and yield
The problems such as insufficient.
Preferably, wherein the synthesis focal length of first lens and the second lens is f12, the third lens and the 4th lens
Synthesis focal length is f34, and meets following condition: -0.1 < f12/f34 < -0.03.When f12/f34 meets foregoing relationships, then may be used
The six chips imaging lens group is enabled to have big picture angle, high picture number and low camera lens height, while resolving power is obviously improved, instead
It, if exceeding the data value range of above-mentioned optical profile type, performance, the resolving power that will lead to six chip imaging lens groups are low, and
The problems such as yield is insufficient.
Preferably, wherein the synthesis focal length of the third lens and the 4th lens is f34, the 5th lens and the 6th lens
Synthesis focal length is f56, and meet following condition: -3.5 < f34/f56 < -2.3.When f34/f56 meets foregoing relationships, then may be used
The six chips imaging lens group is enabled to have big picture angle, high picture number and low camera lens height, while resolving power is obviously improved, instead
It, if exceeding the data value range of above-mentioned optical profile type, performance, the resolving power that will lead to six chip imaging lens groups are low, and
The problems such as yield is insufficient.
Preferably, wherein the synthesis focal length of the 4th lens and the 5th lens is f45, the focal length of the 6th lens is f6,
And meet following condition: -2.6 < f45/f6 < -1.3.When f45/f6 meets foregoing relationships, then the six chips imaging lens can be enabled
Group is having big picture angle, high picture number and low camera lens height, while resolving power is obviously improved, conversely, if exceeding above-mentioned optical profile type
Data value range, then will lead to the performance of six chip imaging lens groups, the problems such as resolving power is low and yield is insufficient.
Preferably, wherein the focal length of first lens is f1, the synthesis of second lens, the third lens and the 4th lens is burnt
Away from for f234, and meet following condition: -0.7 < f1/f234 < -0.3.By the appropriately configured of refracting power, help to reduce ball
The generation of difference, astigmatism.
Preferably, wherein the synthesis focal length of second lens, the third lens and the 4th lens is f234, the 5th lens
Focal length is f5, and meets following condition: -1.6 < f234/f5 < -1.0.By the appropriately configured of refracting power, help to reduce ball
The generation of difference, astigmatism.
Preferably, wherein second lens, the third lens and the 4th lens synthesis focal length be f234, the 5th lens with
The synthesis focal length of 6th lens is f56, and meets following condition: -0.35 < f234/f56 < -0.05.By the appropriate of refracting power
Configuration facilitates the generation for reducing spherical aberration, astigmatism.
Preferably, wherein the synthesis focal length of first lens, the second lens and the third lens is f123, the 4th lens
Focal length is f4, and meets following condition: -0.6 < f123/f4 < -0.2.
Preferably, wherein the synthesis focal length of first lens, the second lens and the third lens be f123, the 4th lens with
The synthesis focal length of 5th lens is f45, and meets following condition: 0.15 < f123/f45 < 0.5.When f123/f45 meets aforementioned pass
It is formula, then the six chips imaging lens group can be enabled to have big picture angle, high picture number and low camera lens height, while resolving power is significant
It is promoted, conversely, will lead to performance, the resolving power of six chip imaging lens groups if exceeding the data value range of above-mentioned optical profile type
The problems such as low and yield is insufficient.
Preferably, wherein the synthesis focal length of first lens, the second lens and the third lens be f123, the 4th lens,
The synthesis focal length of 5th lens and the 6th lens is f456, and meets following condition: -0.6 < f123/f456 < -0.2.Work as f123/
F456 meets foregoing relationships, then the six chips imaging lens group can be enabled to have big picture angle, high picture number and low camera lens height, together
When resolving power be obviously improved, conversely, if exceed above-mentioned optical profile type data value range, will lead to six chip imaging lens groups
Performance, the problems such as resolving power is low and yield is insufficient.
Preferably, wherein the abbe number of first lens is V1, the abbe number of second lens is V2, and under satisfaction
Column condition: 30 < V1-V2 < 42.Whereby, the color difference of the six chips imaging lens group can be corrected.
Preferably, wherein the abbe number of the third lens is V3, the abbe number of the 4th lens is V4, and under satisfaction
Column condition: 30 < V3-V4 < 42.Whereby, the color difference of the six chips imaging lens group can be corrected.
Preferably, wherein the whole focal length of the six chips imaging lens group is f, the object side surface of first lens is extremely imaged
Face is TL in the distance on optical axis, and meets following condition: 0.6 < f/TL < 0.95.Whereby, extensive picture angle can be help to obtain
(field angle) and the miniaturization for being conducive to maintain the six chips imaging lens group, to be equipped on frivolous electronic product.
It is related the present invention to reach above-mentioned purpose, used technology, means and other the effect of, hereby lift two preferably it is feasible
Embodiment simultaneously cooperates schema detailed description is as follows.
Detailed description of the invention
Figure 1A is the schematic diagram of six chip imaging lens groups of the embodiment of the present invention one.
Figure 1B is sequentially the curvature of the image and distortion astigmat curve of six chip imaging lens groups of embodiment one from left to right
Figure.
Fig. 2A is the schematic diagram of six chip imaging lens groups of the embodiment of the present invention two.
Fig. 2 B is sequentially the curvature of the image and distortion astigmat curve of six chip imaging lens groups of embodiment two from left to right
Figure.
Sign flag illustrates in attached drawing:
100,200,300: aperture
110,210,310: the first lens
111,211,311: object side surface
112,212,312: image side surface
120,220,320: the second lens
121,221,321: object side surface
122,222,322: image side surface
130,230,330: the third lens
131,231,331: object side surface
132,232,332: image side surface
140,240,340: the four lens
141,241,341: object side surface
142,242,342: image side surface
150,250,350: the five lens
151,251,351: object side surface
152,252,352: image side surface
160,260,360: the six lens
161,261,361: object side surface
162,262,362: image side surface
170,270,370: infrared ray filters out filtering assembly
180,280,380: imaging surface
190,290,390: optical axis
The focal length of f: six chip imaging lens groups
The f-number of Fno: six chip imaging lens groups
FOV: six chip imaging lens Zu Zhong maximum field of view angles
The focal length of f1: the first lens
The focal length of f2: the second lens
F3: the focal length of the third lens
The focal length of f4: the four lens
The focal length of f5: the five lens
The focal length of f6: the six lens
The synthesis focal length of f12: the first lens and the second lens
The synthesis focal length of f23: the second lens and the third lens
F34: the synthesis focal length of the third lens and the 4th lens
The synthesis focal length of f45: the four lens and the 5th lens
The synthesis focal length of f56: the five lens and the 6th lens
The synthesis focal length of f123: the first lens, the second lens and the third lens
The synthesis focal length of f234: the second lens, the third lens and the 4th lens
The synthesis focal length of f456: the four lens, the 5th lens and the 6th lens
The abbe number of V1: the first lens
The abbe number of V2: the second lens
V3: the abbe number of the third lens
The abbe number of V4: the four lens
The object side surface of TL: the first lens is to imaging surface in the distance on optical axis
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment one
Figure 1A and Figure 1B is please referred to, wherein Figure 1A is painted shows according to six chip imaging lens groups of the embodiment of the present invention one
It is intended to, Figure 1B is sequentially the curvature of the image and distortion astigmat curve graph of six chip imaging lens groups of embodiment one from left to right.
By Figure 1A it is found that six chip imaging lens groups include an aperture 100 and an optics group, the optics group by object side to image side sequentially
Comprising the first lens 110, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160,
Infrared ray filters out filtering assembly 170 and imaging surface 180, and the lens for wherein having refracting power in the six chips imaging lens group are
Six.The aperture 100 is arranged between the image side surface 112 of first lens 110 and object.
First lens 110 have positive refracting power, and are plastic material, are convex at 111 dipped beam axis 190 of object side surface
Face is concave surface at 112 dipped beam axis 190 of image side surface, and the object side surface 111 and image side surface 112 are all aspherical.
Second lens 120 have negative refracting power, and are plastic material, are convex at 121 dipped beam axis 190 of object side surface
Face is concave surface at 122 dipped beam axis 190 of image side surface, and the object side surface 121 and image side surface 122 are all aspherical.
The third lens 130 have positive refracting power, and are plastic material, are convex at 131 dipped beam axis 190 of object side surface
Face is convex surface at 132 dipped beam axis 190 of image side surface, and the object side surface 131 and image side surface 132 are all aspherical.
4th lens 140 have negative refracting power, and are plastic material, are recessed at 141 dipped beam axis 190 of object side surface
Face is convex surface at 142 dipped beam axis 190 of image side surface, and the object side surface 141 and image side surface 142 are all aspherical.
5th lens 150 have positive refracting power, and are plastic material, are convex at 151 dipped beam axis 190 of object side surface
Face is concave surface at 152 dipped beam axis 190 of image side surface, and the object side surface 151 and image side surface 152 are all aspherical.
6th lens 160 have negative refracting power, and are plastic material, are recessed at 161 dipped beam axis 190 of object side surface
Face is convex surface at 162 dipped beam axis 190 of image side surface, and the object side surface 161 and image side surface 162 are all aspherical, and should
Object side surface 161 and a image side surface 162 at least surface have an at least point of inflexion.
It is glass material that the infrared ray, which filters out filtering assembly 170, is set between the 6th lens 160 and imaging surface 180
And do not influence the focal length of the six chips imaging lens group.
The aspherical fitting equation of above-mentioned each lens is expressed as follows:
Wherein z is along 190 direction of optical axis in the positional value that be highly the position of h make to refer to surface vertices；C is lens measure
Face close to optical axis 190 curvature, and be radius of curvature (R) inverse (c=1/R), R be lens surface close to optical axis 190 song
Rate radius, h are vertical range of the lens surface apart from optical axis 190, and k is circular cone coefficient (conic constant), and A, B, C,
D, E, G ... be order aspherical coefficients.
In six chip imaging lens groups of embodiment one, the focal length of six chip imaging lens groups is f, six chip imaging lens
The f-number (f-number) of group is Fno, and six chip imaging lens Zu Zhong maximum field of view angles are FOV, and numerical value is as follows: f=
3.89 (millimetres)；Fno=2.0；And FOV=78 (degree).
In six chip imaging lens groups of embodiment one, the focal length of first lens 110 is f1, second lens 120
Focal length is f2, and meets following condition: f1/f2=-0.47.
In six chip imaging lens groups of embodiment one, the focal length of second lens 120 is f2, the third lens 130
Focal length is f3, and meets following condition: f2/f3=-0.80.
In six chip imaging lens groups of embodiment one, the focal length of the third lens 130 is f3, the 4th lens 140
Focal length is f4, and meets following condition: f3/f4=-1.03.
In six chip imaging lens groups of embodiment one, the focal length of the 4th lens 140 is f4, the 5th lens 150
Focal length is f5, and meets following condition: f4/f5=-1.59.
In six chip imaging lens groups of embodiment one, the focal length of the 5th lens 150 is f5, the 6th lens 160
Focal length is f6, and meets following condition: f5/f6=-1.08.
In six chip imaging lens groups of embodiment one, the focal length of first lens 110 is f1, the third lens 130
Focal length is f3, and meets following condition: f1/f3=0.37.
In six chip imaging lens groups of embodiment one, the focal length of second lens 120 is f2, the 4th lens 140
Focal length is f4, and meets following condition: f2/f4=0.83.
In six chip imaging lens groups of embodiment one, the focal length of the third lens 130 is f3, the 5th lens 150
Focal length is f5, and meets following condition: f3/f5=1.64.
In six chip imaging lens groups of embodiment one, the focal length of the 4th lens 140 is f4, the 6th lens 160
Focal length is f6, and meets following condition: f4/f6=1.71.
In six chip imaging lens groups of embodiment one, the focal lengths of first lens 110 is f1, second lens 120 with
The synthesis focal length of the third lens 130 is f23, and meets following condition: f1/f23=-0.06.
In six chip imaging lens groups of embodiment one, second lens 120 and the synthesis focal length of the third lens 130 are
The focal length of f23, the 4th lens 140 are f4, and meet following condition: f23/f4=6.06.
In six chip imaging lens groups of embodiment one, second lens 120 and the synthesis focal length of the third lens 130 are
The synthesis focal length of f23, the 4th lens 140 and the 5th lens 150 is f45, and meets following condition: f23/f45=-4.58.
In six chip imaging lens groups of embodiment one, the synthesis focal length of first lens 110 and the second lens 120 is
The synthesis focal length of f12, the third lens 130 and the 4th lens 140 is f34, and meets following condition: f12/f34=-0.05.
In six chip imaging lens groups of embodiment one, the third lens 130 and the synthesis focal length of the 4th lens 140 are
The synthesis focal length of f34, the 5th lens 150 and the 6th lens 160 is f56, and meets following condition: f34/f56=-2.69.
In six chip imaging lens groups of embodiment one, the synthesis focal length of the 4th lens 140 and the 5th lens 150 is
The focal length of f45, the 6th lens 160 are f6, and meet following condition: f45/f6=-2.26.
In six chip imaging lens groups of embodiment one, the focal lengths of first lens 110 is f1, second lens 120, the
The synthesis focal length of three lens 130 and the 4th lens 140 is f234, and meets following condition: f1/f234=-0.48.
In six chip imaging lens groups of embodiment one, second lens 120, the third lens 130 and the 4th lens 140
Synthesis focal length is f234, and the focal length of the 5th lens 150 is f5, and meets following condition: f234/f5=-1.29.
In six chip imaging lens groups of embodiment one, second lens 120, the third lens 130 and the 4th lens 140
Synthesis focal length is f234, and the synthesis focal length of the 5th lens 150 and the 6th lens 160 is f56, and meets following condition: f234/
F56=-0.17.
In six chip imaging lens groups of embodiment one, first lens 110, the second lens 120 and the third lens 130
Synthesis focal length is f123, and the focal length of the focal length of the 4th lens 140 is f4, and meets following condition: f123/f4=-0.43.
In six chip imaging lens groups of embodiment one, first lens 110, second lens 120 and the third lens 130
Synthesis focal length be f123, the synthesis focal length of the 4th lens 140 and the 5th lens 150 is f45, and meets following condition:
F123/f45=0.33.
In six chip imaging lens groups of embodiment one, first lens 110, second lens 120 and the third lens 130
Synthesis focal length be f123, the synthesis focal lengths of the 4th lens 140, the 5th lens 150 and the 6th lens 160 is f456, and is expired
Foot column condition: f123/f456=-0.42.
In six chip imaging lens groups of embodiment one, the abbe number of first lens 110 is V1, second lens
120 abbe number is V2, and meets following condition: V1-V2=34.5.
In six chip imaging lens groups of embodiment one, the abbe number of the third lens 130 is V3, the 4th lens
140 abbe number is V4, and meets following condition: V3-V4=34.5.
In six chip imaging lens groups of embodiment one, the whole focal length of the six chips imaging lens group is f, this is first thoroughly
The object side surface 111 of mirror 110 is TL in the distance on optical axis 190 to imaging surface 180, and meets following condition: f/TL=0.85.
Cooperate again referring to following table 1 and table 2.
Table 1 is the detailed structured data of Figure 1A embodiment one, and wherein the unit of radius of curvature, thickness and focal length is mm, and
Surface 0-17 is sequentially indicated by the surface of object side to image side.Table 2 is the aspherical surface data in embodiment one, wherein k table is aspherical
Conical surface coefficient in fitting equation, A, B, C, D, E, F ... be order aspherical coefficients.In addition, following embodiment table
Be the schematic diagram and curvature of the image curve graph of corresponding each embodiment, in table the definition of data all with the table 1 and table of embodiment one
2 definition is identical, is not added repeats herein.
Embodiment two
A and Fig. 2 B referring to figure 2., wherein Fig. 2A is painted shows according to six chip imaging lens groups of the embodiment of the present invention two
It is intended to, Fig. 2 B is sequentially the curvature of the image and distortion astigmat curve graph of six chip imaging lens groups of embodiment two from left to right.
By Fig. 2A it is found that six chip imaging lens groups include an aperture 200 and an optics group, the optics group by object side to image side sequentially
Comprising the first lens 210, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260,
Infrared ray filters out filtering assembly 270 and imaging surface 280, and the lens for wherein having refracting power in the six chips imaging lens group are
Six.The aperture 200 is arranged between the image side surface 212 of first lens 210 and object.
First lens 210 have positive refracting power, and are plastic material, are convex at 211 dipped beam axis 290 of object side surface
Face is concave surface at 212 dipped beam axis 290 of image side surface, and the object side surface 211 and image side surface 212 are all aspherical.
Second lens 220 have negative refracting power, and are plastic material, are convex at 221 dipped beam axis 290 of object side surface
Face is concave surface at 222 dipped beam axis 290 of image side surface, and the object side surface 221 and image side surface 222 are all aspherical.
The third lens 230 have positive refracting power, and are plastic material, are convex at 231 dipped beam axis 290 of object side surface
Face is convex surface at 232 dipped beam axis 290 of image side surface, and the object side surface 231 and image side surface 232 are all aspherical.
4th lens 240 have negative refracting power, and are plastic material, are recessed at 241 dipped beam axis 290 of object side surface
Face is convex surface at 242 dipped beam axis 290 of image side surface, and the object side surface 241 and image side surface 242 are all aspherical.
5th lens 250 have positive refracting power, and are plastic material, are convex at 251 dipped beam axis 290 of object side surface
Face is concave surface at 252 dipped beam axis 290 of image side surface, and the object side surface 251 and image side surface 252 are all aspherical.
6th lens 260 have negative refracting power, and are plastic material, are recessed at 261 dipped beam axis 290 of object side surface
Face is convex surface at 262 dipped beam axis 290 of image side surface, and the object side surface 261 and image side surface 262 are all aspherical, and should
Object side surface 261 and a image side surface 262 at least surface have an at least point of inflexion.
It is glass material that the infrared ray, which filters out filtering assembly 270, is set between the 5th lens 250 and imaging surface 280
And do not influence the focal length of the six chips imaging lens group.
Cooperate again referring to following table 3 and table 4.
In embodiment two, aspherical fitting equation indicates the form such as embodiment one.In addition, the definition of following table parameter
It is all the same as example 1, not in this to go forth.
Cooperation table 3 and table 4 can extrapolate following data:
Six chips imaging lens group provided by the invention, the material of lens can be plastics or glass, when lens material is modeling
Material, can be effectively reduced production cost, and the another material for working as lens is glass, then can increase by six chip imaging lens group refracting powers
The freedom degree of configuration.In addition, the object side surface and image side surface of lens can be aspherical to be aspherical in six chip imaging lens groups
It can be easy to be fabricated to the shape other than spherical surface, obtain more control variable, to cut down aberration, and then reduce lens and use
Number, therefore the total length of six chip imaging lens groups of the invention can be effectively reduced.
In six chips imaging lens group provided by the invention, for the lens with refracting power, if lens surface is
Convex surface and when not defining the convex surface position, then it represents that the lens surface is convex surface at dipped beam axis；If lens surface be concave surface and
When not defining the concave surface position, then it represents that the lens surface is concave surface at dipped beam axis.
The more visual demand of six chips imaging lens group provided by the invention is applied in the optical system of mobile focusing, and simultaneous
Have the characteristic of excellent lens error correction Yu good image quality, many-sided can be applied to 3D (three-dimensional) image capture, digital camera, row
In the electronic image systems such as dynamic device, Digital Drawing plate or automobile-used photography.
In conclusion the various embodiments described above and attached drawing are only presently preferred embodiments of the present invention, not to limit this
The protection scope of invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done all are answered
It is included within the scope of the present invention.
Claims (24)
1. a kind of six chip imaging lens groups, which is characterized in that sequentially include by object side to image side:
One aperture；
One first lens have positive refracting power, are convex surface at the dipped beam axis of object side surface, are recessed at the dipped beam axis of image side surface
Face, object side surface are aspherical with an image side surface at least surface；
One second lens have negative refracting power, are convex surface at the dipped beam axis of object side surface, are recessed at the dipped beam axis of image side surface
Face, object side surface are aspherical with an image side surface at least surface；
One the third lens have positive refracting power, are convex surface at the dipped beam axis of object side surface, are convex at the dipped beam axis of image side surface
Face, object side surface are aspherical with an image side surface at least surface；
One the 4th lens have negative refracting power, are concave surface at the dipped beam axis of object side surface, are convex at the dipped beam axis of image side surface
Face, object side surface are aspherical with an image side surface at least surface；
One the 5th lens have positive refracting power, are convex surface at the dipped beam axis of object side surface, are recessed at the dipped beam axis of image side surface
Face, object side surface are aspherical with an image side surface at least surface；
One the 6th lens have negative refracting power, are concave surface at the dipped beam axis of object side surface, are convex at the dipped beam axis of image side surface
Face, object side surface and an image side surface at least surface be it is aspherical, object side surface and an image side surface at least surface have
An at least point of inflexion；
Second lens and the synthesis focal length of the third lens are f23, and the focal length of the 4th lens is f4, and meets following condition:
3.0<f23/f4<7.0。
2. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, this
The focal length of two lens is f2, and meets following condition: -0.7 < f1/f2 < -0.3.
3. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of second lens is f2, this
The focal length of three lens is f3, and meets following condition: -1.0 < f2/f3 < -0.6.
4. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of the third lens is f3, this
The focal length of four lens is f4, and meets following condition: -1.3 < f3/f4 < -0.7.
5. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of the 4th lens is f4, this
The focal length of five lens is f5, and meets following condition: -1.9 < f4/f5 < -1.3.
6. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of the 5th lens is f5, this
The focal length of six lens is f6, and meets following condition: -1.4 < f5/f6 < -0.7.
7. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, this
The focal length of three lens is f3, and meets following condition: 0.2 < f1/f3 < 0.6.
8. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of second lens is f2, this
The focal length of four lens is f4, and meets following condition: 0.6 < f2/f4 < 1.0.
9. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of the third lens is f3, this
The focal length of five lens is f5, and meets following condition: 1.3 < f3/f5 < 2.0.
10. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of the 4th lens is f4, this
The focal length of six lens is f6, and meets following condition: 1.3 < f4/f6 < 2.0.
11. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, this
Two lens and the synthesis focal length of the third lens are f23, and meet following condition: -0.1 < f1/f23 < -0.03.
12. six chips imaging lens group as described in claim 1, which is characterized in that the conjunction of second lens and the third lens
For coking away from for f23, the synthesis focal length of the 4th lens and the 5th lens is f45, and meets following condition: -5.0 < f23/f45 < -
3.8。
13. six chips imaging lens group as described in claim 1, which is characterized in that the conjunction of first lens and the second lens
For coking away from for f12, the synthesis focal length of the third lens and the 4th lens is f34, and meets following condition: -0.1 < f12/f34 < -
0.03。
14. six chips imaging lens group as described in claim 1, which is characterized in that the conjunction of the third lens and the 4th lens
For coking away from for f34, the synthesis focal length of the 5th lens and the 6th lens is f56, and meet following condition: -3.5 < f34/f56
<-2.3。
15. six chips imaging lens group as described in claim 1, which is characterized in that the conjunction of the 4th lens and the 5th lens
For coking away from for f45, the focal length of the 6th lens is f6, and meets following condition: -2.6 < f45/f6 < -1.3.
16. six chips imaging lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, this
The synthesis focal length of two lens, the third lens and the 4th lens is f234, and meets following condition: -0.7 < f1/f234 < -0.3.
17. six chips imaging lens group as described in claim 1, which is characterized in that second lens, the third lens and the 4th
The synthesis focal length of lens is f234, and the focal length of the 5th lens is f5, and meets following condition: -1.6 < f234/f5 < -1.0.
18. six chips imaging lens group as described in claim 1, which is characterized in that second lens, the third lens and the 4th
The synthesis focal length of lens is f234, and the synthesis focal length of the 5th lens and the 6th lens is f56, and meets following condition: -0.35
<f234/f56<-0.05。
19. six chips imaging lens group as described in claim 1, which is characterized in that first lens, the second lens and third
The synthesis focal length of lens is f123, and the focal length of the 4th lens is f4, and meets following condition: -0.6 < f123/f4 < -0.2.
20. six chips imaging lens group as described in claim 1, which is characterized in that first lens, the second lens and third
The synthesis focal length of lens is f123, and the synthesis focal length of the 4th lens and the 5th lens is f45, and meets following condition: 0.15 <
f123/f45<0.5。
21. six chips imaging lens group as described in claim 1, which is characterized in that first lens, the second lens and third
The synthesis focal length of lens is f123, and the synthesis focal length of the 4th lens, the 5th lens and the 6th lens is f456, and is met following
Condition: -0.6 < f123/f456 < -0.2.
22. six chips imaging lens group as described in claim 1, which is characterized in that the abbe number of first lens is V1,
The abbe number of second lens is V2, and meets following condition: 30 < V1-V2 < 42.
23. six chips imaging lens group as described in claim 1, which is characterized in that the abbe number of the third lens is V3,
The abbe number of 4th lens is V4, and meets following condition: 30 < V3-V4 < 42.
24. six chips imaging lens group as described in claim 1, which is characterized in that the entirety of the six chips imaging lens group
Focal length is f, and the object side surface of first lens to imaging surface is TL in the distance on optical axis, and meets following condition: 0.6 < f/
TL<0.95。
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| CN114185150A (en) * | 2020-09-15 | 2022-03-15 | 佳凌科技股份有限公司 | Optical imaging lens |
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